lorenz



May 15, 1923. Y Re.- 15,600

.- w. A. LORENZ PROCESS OF AND APARATUS FOR FEEDING MOLTEN GLASS Original Filed mg. '2, 1917 2' Shqets-g-Sheet 1 May 15, 1923. Re. 15,600 V w. A. LORENZ PROCESS OF AND APPARATUS FOR FEEDING MOLTEN GLASS orlginalriled Au 7, 1917' 2 Sheets-Sheet 2 WIIIISSES INVENTOR Reissued May 15, 1923.

UNITED stares PATENT OFFICE.

WILLIAM A. Lonn azfor HARTFORD, CONNECTICUT, Assmnos T HAsTroRn-Fiim- MONT COMPANY, or CANAJOHARIE. NEW YORK, A. ooeeonnrczon' 01* NEW YORK.

P RQCESS OF AND APPARATUS FOR FEEDING MOLTEN GLASS.

Original N0. 1,300.181, dated April 8, 1919, Serial No. 184,875, filed August 7, 131?.

reissue filed March 16, 1920.

To all n l/0m it may P07106771.

Be it known that I. TILZIAM .\..Lonnxz. a'citizen of the United States. residing at l-lart't'ord. in the county of l'lartl'ord and State of Connecticut. have invented new and useful Improvements in Processes of and Apparatus for Feeding Molten Glass, of which. the following is a specification.

This invention relates to means employed for delivering to pressing or blowing mold charges of molten glass which are gathered and separated from a molten supply in a l'urnaceor other container.

.l t has.been customary to discharge thegathers of glassdirectly 'l'rom a spout or cup or conduit into the molds. These gathers oi glass aSSumeyarious contours. while formii'ig into a gather. or while passing to the molds. so that when proiccted into the molds they are not regular or uniform in shape. which ali'ects the uniform distribution of the glass in the molds when pressed or blown and they are liable to fill the mouths of the molds and prevent the outflow of air- 'which confined air becomes occluded and forms bubbles and other imperlections in the finished product. In thus delivering glass to molds; the trajectoral paths of the gathers as determined bytheir gravital movements, will vary in accordance with changes in the rate of movement ot the gathers and hence will not be delivered centrally to the molds with the desired uniform ity.

The object of this invention is to provide means-above the mouths oththc molds and athwiirt the trajcctoral movement of the gathers tccnsure their central delivery into themolds and which will import to the gathers oi glass such shape. and deposit them in the molds in such manner that air will not be liable to be imprisoned. and the glass will be more uniformly distributed in the molds.

This object is attained by passing the molten glass gathers through a curved l'unncl.

which has an enlarged entrance opening for receiving the glass gathers and has a reduced discharge opening which delivers the gathcrs in-such shape and ol such size that they quickly drop in elongatci-l masses ol' practically uuil'orni cross section to the bottom ol' the molds.

Application for Serial No. 366,443.

In the accompanying drawings forming a. part of this specification, Fig. 1 shows'a plan view of a solid funnel and its support; F 1g. 2 shows a side elevation o't'the solid tunnel and its support and a mold on its table; Fig. 3 shows a plan View of a funnel that is made in separable sections so that it may he opened; Fig. 4 shows a side elevation of the sectional funnel over a mold; Fig. 5 shows a side elevation of the sectional funnel opened as for removing a mass of glass which has choked it. Fig. (3 shows a side elevation of a funnel having a modified interior shape. Fig. 7 shows an enlarged section on line 7 7 on Fig. 6. Fig. 8 shows an enlarged section on line 8-8 on Fig. 6. Fig. 9 shows a section on line 9-4) ot the trough shown in Fig. 6. Fig. 10 shows an. enlarged section taken on line 10-10 on Fig. 2.

.In the views a portion of the table 12 of a glass pressing or blowing machine is represented as mounted to turn on the shaft 13 and as carrying a mold 14. Above the mold is the delivery end 15 of a trough or conduit tor conducting the glass gathers from a source of supply. An arm 16 is fastened to the shaft 13. and mounted on the outer end of, this arm over the mold is the curved funncl 1?. The opening 18 from the bottom of the tunnel is slightly smaller than but is sul'istantially the same in cross sectional shape as the mouth opening 19 of the mold. and the tunnel is located so that the axis of its discharge opening is in line with the axis of themouth opening of the mold which in the case illustrated is vertical. The tunnel is curved in such a manner that its upper end is in position to receive gathers of glass that siidc from the end of the trough 15. and the receiving opening 20 is enlarged so as to receive the glass as 'it is delivered from the trough.

'lhe gathers of molten glass 21. which have substantially the crosssectional shape shown in Fig. it slide from the trough down which they come impelled by gravity into the mouth ol the tunnel. and strihing the longitudinal curved inner guiding surface ol the funnel they will be deflected from their trajcctoral paths and directed ccntrally into a mold. The guiding surface is approximately tangential to the path of the gather 29 (Fig.

that of the molds into which they are to be.

dropped and they may he elongated and re duced in diameter so that they will drop vertically from the end of the funnel, as shown in 2, to the bottom of the molds, as shown in Fig. 4. .Yhen shapedand delivered in this manner there will be a small space 22 (Fig. 10) substantially around the gather. between it and the wall of the mold,

through which the air canescape so that the gather will drop freely to the bottom ofthe mold without entrapping air to any detrimental extent.

The funnel above described is formed in a single pieceof any suitable metal as iron or aluminum, and should a' gather of excess size or extremely abnormal shape happen to be fed into it, and sticking therein, fail to drop into the mold, it would be necessary to pick out this large gather through the enlarged opening at the receiving end :20 of the tunnel. in order to avoid danger of damaging the funnel and to save time in clearing out a gather stuck therein, the funnel may be made in sections as shown in Figs. 3, 4i and 5. In this case the section 23 may he made integral with the base flange 24 of the funnel, and the section may be hinged to the base by a pin 26. For convenience in opening and closing the hinged section of the funnel it may be pro-- vided with a hooked log 27 and this section may also be provided with a stop lug 28 which. engages the base so as; to prevent the section from opening too wide. Should a 5) stickin the funnel the hinged section may be thrown open so that this gather may be easily and quickly re moved and then the hinged section may he closed so that the funnel will resume normal function.

The molds iilustrsteiil have miu'ths tliel, are circular in no the (scharge openings shown in Figs. 1 and 2 or i as being" these conditions the gathers are more or I v oval or flattened in cross section. An oval gather which slides through the funnel is converted. nto a cross section like that of the passageihrough the funnel." This slight .ly retards the movement of the gather through the funnel. By making the delivery end of any of the funnel openings 30 oval or elliptical, for use undersuch circumstances as shown in Figs. 6 and 7, the oval or misshapen glass gathers 31 are not wholly converted into circular form, thus ofi'ering less resistance to the passage of the gather through the funnelf If the gather is shaped to an oval form in the funnel and has its longer diameter slightly shorter than the internal diameter of the mold, and its shorter diameter some-whatles, spaces 32 of suificient cross sectional area will be left between the gather and the wall ofthe mold, as shown in Fig. 8, to'enable the "air in the mold to escape freely along the walls of the mold-as the gather drops down to the. bottom of the mold. This allows the gather to drop quickly to the bottom ofthe mold with a minimum amount of air confined beneath it.

I claim herein as my invention:

1. In an apparatus for handling gathers of molten glass the combination with a conducting trough and shaping mold of a curved incloslng funnel located between the,

delivery end of the trough and the mouth of the mold for conducting the gathers from the trough to the mold and shaping them while being so conducted.

2. In apparatus for handling gathers of molten glass the combination with a c0nducting trough and a shaping mold, of a curved inclosing fnnnel intermediate the trough and the mold. said funnel having an enlarged entrance opening adjacent to and substantially in line with the delivery end of the trough, and it smaller discharge opening adjacent to and substantially in line with the mouth of the mold. i

3. In an apparatus for handling gather of molten glass the combination with a conducting trough and a shaping mold, of a funnel arranged between the delivery end oi the trough endthc mouth of the mold, said funnel having: a cum ed passage that is oval in cross section et its discharge end for conductingg-athers of glass from the trough to the mold and shaping them while being conducted therethrough.

4. In an apparatus-for handling gathers of molten. the combination/with a conducting trough. and a shaping mold of a funnel having s curved passage fromfthe delivery end of. the trough to the mouth of the ssid having its. walls formed in sections so it may be opened to gain access to the ce-mags thenethrough.

In an apparatus for handling gathers of molten glass the combination with a conducting trough and a shaping mold. of an inc-losing funnel located livery end of'the trough and the mouth of the mold, the discharge'end of the opening through the funnel longer diameter slightly ameter of the opening in the mold.

6. In an apparatus for handlin gathers of molten glass the combination wlth aconducting trough and a shaping mold, of an enclosing funnel located between the delivery end of the trough and the mouth of the mold, said funnel having a section that 1s rigidly fixed in position and a section 1. u an apparatus for handling of molten glass the combination with an 1nclined conducting trough and a vertical slaping mold, oftan inc-losing funnel havgathers therealong,

' as to permit 1 all molten 8. Inan apparatus for handling gathers of molten glass, the combination 'of a conducting member having such an inclination as to permit of the gravital movement j of a. shaping mold ar ranged with its receiving opening below the level of the discharge end of the conductor and a member having a curved surface the conducting member to a direction in alinement the o ening into the mold.

9. n an of molten glass the combination of a conducting member having such an inclination of the gravital movement of gathers therealong, a mold having its receiving opening below the discharge end of path -of gathers to ch as determined by their gravital along the conducting member, a portion 10. In an apparatus for handling gathers glass, the combination of acondoting member having such an inclination between the degathers as to permit of the rav tal apparatus for handling gathers as to permit of gathers therealong,

transverse the path traversed by the gathers under the impetus imparted by their gravital movement and adapted to cause the gathers to turn on an axis at right angles to their longitudinal axes and to direct them into the mold.

In an apparatus for handling gathers gathers are delivered to said molds.

12. Inan apparatus for handling gathers of moltenglass, the combination toppedn'iold, means for imparting to the gathers of In an of molten he combination of a con ducting member having such an inclination movement of a shaping mold argathers therealong, ranged with level of the discharge end of the conductor and a member having a curvedsurface for effecting a gradual turning movement of the gathers after leaving the conductor and prior to their entrance into the mold.

of an open apparatus for handling gathers its receiving opening below the 14. In an apparatus for, handling gathers i of molten glass 'the combination of a corn noting member having such an inclination as permit of the movement of gathers therealong, a shaping mold arranged with its receiving openin below the level of the discharge end of ,t e conductor and means operative without material retardation of the rate of movement of the gathers for diverting the gathers from the direction] imparted by the conductor them downwardly into the mold.

15. In an apparatus for handling athels of molten glass the combination of aconducting member having such as to permit of the gravital movement gathers therealong, a shaping mold ar ranged with its receiving. opening beloe he and directing an inclination level of the discharge gathers to change "opening into the mold.

- conductor and prior end of the conductor, and a deflecting member having a curved surface athwart the path or: movement of the the direction of their movement and guide them in a curved path from the direction as determined by their gravital. movement along the conducting member to-a direction in aliuement with the 16. In an apparatus for handling gathers of molten glass, the Combination of a con .ducting member having such an nclinatlon as to permit of the gravital movement of gathers therealong, a shaping mold arranged with its receivin opening below the level of the discharge end of the conducting member and a deflecting member having a curved surface arranged to receivethe gathers tangentially for effecting a gradual turning movementpt' the gathers after leaving the to their entrance into the mold. 17. In an apparatus for handling gathers of molten glass, the combination of a conducting member 'as' to permit of the gravital movement of gathers therealong, a shaping mold arranged with its receiving opening below the dis charge end of the conductor and a deflecting member having a curved surface for directing the gathers ed' by the conductor and directing them downward intd the mold, the said surface being also curved in cross section to-.ap-

having such an inclination from the direction impart proximate the curvature of the cross section of the gathers.

18. In an apparatus for delivering charges of molten glass from a furnace or other container to a mold, a member having a. guiding surface disposed approximately tangentialto the path of the gathers whereby they strike said surface with a glancing'blow, said surface below the point at which the gathers strike being curved to deflect the athers gradually away from the previous Iine of movement.

19. In an apparatus :Eor delivering charges of molten glass from a furnace or other container to a mold, a member having a guiding surface disposed approximately tangential to the path of movement of the gatherstwhereby they strike saidisurface with a glancing blow, said surface below the point at which the glass strikes, being curved to deflect the gathers gradually away from the original path and being also curred in cross-section to approximate the curvature of the desired cross section 'of the gathers.

20." The method ofdelivering gathers of molten glass to molds, which consists in employing the momentum acquired by the gathers'during movement to hold them in contactwith a curved guiding surface by which their normal direction of movement is gradually changed.

WILLIAM A; LORENZ. 

